let a = '今天'
let skill = '工作'
let age = '很忙'
let add = function (a, b) {
  return a + b
}
export {
  name as a,  // 可以用 XX as XX更改引入名，更加语意化
  skill,
  age,
  add
}

// export.default var a = '我是默认的'
